From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-11.3 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,NICE_REPLY_A,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8F5D5C4741F for ; Thu, 5 Nov 2020 15:01:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 28A552067B for ; Thu, 5 Nov 2020 15:01:34 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=suse.com header.i=@suse.com header.b="C2EASa61" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731190AbgKEPBd (ORCPT ); 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Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <20201103133108.148112-16-wqu@suse.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org On 3.11.20 г. 15:30 ч., Qu Wenruo wrote: > Just to save us several letters for the incoming patches. > > Signed-off-by: Qu Wenruo > --- > fs/btrfs/ctree.h | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h > index b46eecf882a1..a08cf6545a82 100644 > --- a/fs/btrfs/ctree.h > +++ b/fs/btrfs/ctree.h > @@ -3607,6 +3607,11 @@ static inline int btrfs_defrag_cancelled(struct btrfs_fs_info *fs_info) > return signal_pending(current); > } > > +static inline bool btrfs_is_subpage(struct btrfs_fs_info *fs_info) > +{ > + return (fs_info->sectorsize < PAGE_SIZE); > +} This is conceptually wrong. The filesystem shouldn't care whether we are diong subpage blocksize io or not. I.e it should be implemented in such a way so that everything " just works". All calculation should be performed based on the fs_info::sectorsize and we shouldn't care what the value of PAGE_SIZE is. The central piece becomes sectorsize. > + > #define in_range(b, first, len) ((b) >= (first) && (b) < (first) + (len)) > > /* Sanity test specific functions */ >